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[1]朱秀云,李建波,林皋,等.基于谐响应的核电厂地基动阻抗数值求解算法[J].建筑科学与工程学报,2009,26(03):65-70.
　ZHU Xiu-yun,LI Jian-bo,LIN Gao,et al.Numerical Solution Algorithm to Dynamic Impedance of Foundation for Nuclear Power Plant Based on Harmonic Response[J].Journal of Architecture and Civil Engineering,2009,26(03):65-70.
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
26卷
期数:
2009年03期
页码:
65-70
栏目:
出版日期:
2009-09-20

文章信息/Info

Title:
Numerical Solution Algorithm to Dynamic Impedance of Foundation for Nuclear Power Plant Based on Harmonic Response
作者:
朱秀云1,李建波1,2,林皋1,2,钟红1,2
1.大连理工大学工程抗震研究所,辽宁大连116024; 2.大连理工大学海岸和近海工程国家重点实验室,辽宁大连116024
Author(s):
ZHU Xiu-yun1, LI Jian-bo1,2, LIN Gao1,2, ZHONG Hong1,2
1. Earthquake Engineering Research Division, Dalian University of Technology, Dalian 116024, Liaoning, China; 2. State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China
关键词:
核电厂;  地基动阻抗;  集总参数模型;  谐响应;  动力刚度
Keywords:
nuclear power plant;  dynamic impedance of foundation;  lumped parameter model;  harmonic response;  dynamic stiffness
分类号:
TU271
DOI:
-
文献标志码:
A
摘要:
为了解决单一常系数弹簧-阻尼器并联系统表征的场地动力模型无法反映无限域场地的动刚度和阻尼是随激振频率变化的函数,也无法反映非均质场地条件影响的问题,从谐响应动力求解方法的基本概念出发,以粘弹性场地动力模型为分析对象,推导了一种适于非均质场地条件的随激振频率变化的核电厂地基动阻抗数值的求解方法,并分别以二维和三维算例的形式给出了该方法和传统抗震设计规范集总参数模型结果、经典解的比较。结果表明:采用该方法计算的动阻抗满足工程精度要求且能表征出地基动阻抗是随激励频率改变而变化的。
Abstract:
In the framework of lumped parameter numerical models, the traditional soil dynamic models were only expressed by a single parallel connection system of spring and damper, which could not reflect the dynamic stiffness varying with excitation frequencies, and could not simulate the cases of nonhomogeneous site conditions. Based on the essential concepts of dynamic solution method of harmonic response, an improved numerical solution to the dynamic impedance of foundation for nuclear power plant was presented by using viscoelastic soil dynamic model, which was especially fit for the numerical simulation of nonhomogeneous soil condition, and gave the dynamic impedance of foundation varying with the excitation frequencies. To solve the problems of 2-D and 3-D types, some numerical examples were given to validate its accuracy and applicability by comparing the method with the classical solutions and lumped parameter model suggested by seismic design codes. The results show that the dynamic impedance calculated by the method can satisfy the engineering precision, and the method can take dynamic impedance of foundation changed with excitation frequencies.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2009-05-28
基金项目:国家自然科学基金项目(90510018); 辽宁省工程防灾减灾重点实验室研究基金项目(DPMKL2008004)
作者简介:朱秀云(1985-),女,山东临沂人,工学硕士研究生,E-mail:lyzhuxiuyun@163.cn。
更新日期/Last Update: 2009-09-20